<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org"
      xmlns:sec="http://www.thymeleaf.org/thymeleaf-extras-springsecurity5">
<head>
    <meta charset="UTF-8">
    <title>Spring Security Example</title>
</head>
<body>
<div th:if="${param.error}">
    无效的用户名或密码
</div>
<div th:if="${param.logout}">
    您已经登出
</div>
<form th:action="@{/login}" method="post">
    <div>
        <label>用户名：
            <input type="text" name="username">
        </label>
    </div>
    <div>
        <label>密码：
            <input type="password" name="password">
        </label>
    </div>
    <div>
        <input type="submit" value="登录">
    </div>
</form>
</body>
</html>